ok people so what should I do?It will be mined?
it is the same as bitcoin, so the answer is also the same: the chances are low for this transaction to be mined. but probably a little higher than a 0 fee bitcoin transaction to be mined.
things you can do are also the same:
1. wait until it confirms
2. wait until it drops out of mempool and sent it again with higher fee.
3. double spend it now if you know how and include a higher fee (some wallets won't let you do it in a user friendly manner, you may need to use console)
4. ask a miner to mine your transaction. i know
Quickseller has the ability to push bitcoin transactions to F2Pool, and since F2Pool also mines litecoin he may still be able to help you but you have to ask him that.
5. more info about bitcoin that may fit your situation:
https://bitcointalk.org/index.php?topic=1802212.0